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//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -shaderobj -output-using-type
//TEST(compute, vulkan):COMPARE_COMPUTE_EX:-vk -compute -shaderobj -output-using-type
//TEST(compute):COMPARE_COMPUTE_EX:-cuda -compute -shaderobj -output-using-type
//TEST_INPUT:ubuffer(data=[0 0 0 0 0], stride=4):out,name=outputBuffer
RWStructuredBuffer<float> outputBuffer;
struct D : IDifferentiable
{
float n;
float m;
}
[ForwardDifferentiable]
float f(D d, int i, out D outArray[1][2])
{
outArray[0][0].m = d.n;
outArray[0][0].n = d.m * 3.0f + 1.0;
outArray[0][1].m = d.n * d.n;
outArray[0][1].n = d.m * 4.0f + 1.0;
return outArray[0][0].m + outArray[0][1].n * 2.0;
}
[numthreads(1, 1, 1)]
void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
{
D d = { 1.0, 2.0 };
D.Differential dd = { 1.0, 1.0 };
var dpd = diffPair(d, dd);
D tmp[1][2] = { { { 1.0, 1.0 }, { 1.0, 1.0 } } };
DifferentialPair<D[2][1]> dOut = diffPair(tmp);
var result = __fwd_diff(f)(dpd, 1, dOut).d;
// dOut.d has type D[2][1].Differential. Verify that it can coerce to D.Differential[2][1].
D.Differential darrCopy[1][2] = dOut.d;
outputBuffer[0] = result;
outputBuffer[1] = dOut.d[0][0].n;
outputBuffer[2] = dOut.d[0][0].m;
outputBuffer[3] = darrCopy[0][1].n;
outputBuffer[4] = darrCopy[0][1].m;
}
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